Registration Dossier
Registration Dossier
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EC number: 913-353-9 | CAS number: -
Endpoint summary
Administrative data
Description of key information
No studies are available to determinate the toxicity to aquatic plants other than algae, of trisodium hexafluoroaluminate or calcium fluoride. Available studies on fluoride were used as read-across source. Effective concentrations were recalculated taking in account the different molecular weight of the source and target substance.
A 7 -day study was conducted on Lemna minor to assess the toxicity of fluoride in the presence of chloride and in hard water. Lemna minor was found to be relatively insensitive to fluoride with an IC50 value (frond number) of 391 mg/L F. This relates to 803.39 mg CaF2/L. and relates to 720 mg Na3AlF6/L
Additional information
Reliable acute ecotoxicity test results are available for fish, invertebrates and algae. The 96-h LC50 in Brachydanio rerio is 99 mg/l from a GLP compliant OECD guideline study (Solvay, 2008a). An OECD guideline study is available for short-term toxicity in invertebrates, the 48-h EC50 in Daphnia magna is 156 mg/l (IWL, 1998). The 72-h ErC50 is 8.8 mg/l in the freshwater algae Pseudokirchneriella subcapitata (tested as Selenastrum capricornutum), the 72-h NOEC for growth rate is 1.0 mg/l from a GLP compliant OECD guideline study (Solvay, 2008b).
Long-term ecotoxicity tests with fish and invertebrates are not available.
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